Re: a couple of how to's please

What parameter determines the spacing between the thumbs and the image please, cuz so far nothing changes it.

With a single column of thumbnails positioned to the left of the main image, you could change the spacing between the thumbnails and the main image by changing the value of the stageHPadding configuration option (the amount of horizontal space between gallery elements in pixels) in svBuilder-Pro's 'Customize -> General' section.Otherwise, you could use a Fixed Layout to give absolute fixed positions to stage elements.

and then how can we put a title where we want it like in this sample please?

If the thumbnails are positioned to the left of the main image, then it would not be possible to exactly center a title across the entire stage. Setting titlePosition="TOP", for example, would position the title above the main image (not the entire stage).If you want to exactly center a title across the entire stage, then a Fixed Layout might be the best solution.